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x-microsoft-antispam-message-info: 1VuOvnCypxkohMr4wZBP7d36qNWGO5YnIzFBrSFnY7wy6PByTbOcFsSk7wL54Y1MHux6Jdz1QKpNbOI8cXetN1XkalszEm2cKJuyhW95Tx6jYI5SMpHYt+k/yPqKtZRqrPO5wliFtyfZax+u4wsbKCyc5OUE7ViMqAPi9tTmW4yb13KJLV2iN0EfRc5bFEQv spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-ID: MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 47df7b31-29e3-4a0f-adec-08d5b0661fc9 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 47df7b31-29e3-4a0f-adec-08d5b0661fc9 X-MS-Exchange-CrossTenant-originalarrivaltime: 02 May 2018 19:51:40.8796 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1014 X-Remote-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Remote-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Greg KH , "linux-kernel@vger.kernel.org" , "w@1wt.eu" , "ksummit-discuss@lists.linuxfoundation.org" Subject: Re: [Ksummit-discuss] bug-introducing patches X-BeenThere: ksummit-discuss@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Sasha Levin via Ksummit-discuss Reply-To: Sasha Levin Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: ksummit-discuss-bounces@lists.linuxfoundation.org Errors-To: ksummit-discuss-bounces@lists.linuxfoundation.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Wed, May 02, 2018 at 05:32:37PM +0200, Geert Uytterhoeven wrote: >Hi Sasha, > >On Tue, May 1, 2018 at 6:38 PM, Sasha Levin > wrote: >> Working on AUTOSEL, it became even more obvious to me how difficult it is for a >> patch to get a proper review. Maintainers found it difficult to keep up with >> the upstream work for their subsystem, and reviewing additional -stable patches >> put even more load on them which some suggested would be more than what they >> can handle. > >Thanks for your work! > >> - For some reason, the odds of a -rc commit to be targetted for -stable is >> over 20%, while for merge window commits it's about 3%. I can't quite >> explain why that happens, but this would suggest that -rc commits end up >> hurting -stable pretty badly. > >Aren't more -rc commits targeted for -stable because they are bugfixes? >Ideally, new features are supposed to be merged during the merge window, >while -rc commits fix bugs. new features can only be merged during a merge window, bug fixes can be merged at any point. >So they can be categorized like: > 1. Plain -rc commits, What's this exactly? -rc commits are only supposed to fix bugs. > 2. -rc commits fixing a bug: > a. in the same release cycle, > b. in a previous release. > >2a assumes the bug was backported to -stable, too, doesn't it? Bug fixes for features introduced in that release cycle won't be backported to stable. >Do you have statistics for which categories are most buggy? I haven't broken it down to subsystems for a few reasons: - My dataset is based on the Fixes: tag, some subsystems use it less than others. - Maintainers change, so even if one subsystem is being awesome about it today, it might not be the case in a year. - I don't really want to point fingers at a particular subsystem, I think that this is an issue at the kernel level. _______________________________________________ Ksummit-discuss mailing list Ksummit-discuss@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/ksummit-discuss